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Annals of Public Health and Research
Cite this article: Espósito M, Sakurai E, Lamounier JA, Teixeira RA, Bonomo É, et al. (2017) Retinol and Fat from Breast Milk of Brazilian Mothers at High
Risk for Food Unsafe. Ann Public Health Res 4(3): 1063.
*Corresponding author
Mariana Araujo Esposito, Escola de Medicina da
UFMG, Rua Nossa Senhora de Fatima, 46 /101 Olaria
Lavras, 37200-000, Brazil, Tel: 5533991072087; Email:
Submitted: 21 July 2016
Accepted: 06 June 2017
Published: 08 June 2017
Copyright
© 2017 Espósito et al.
OPEN ACCESS
Keywords
• Breast milk
• HPLC
• Retinol
• Vitamin A deficiency
• Breast-feeding
Research Article
Retinol and Fat from Breast
Milk of Brazilian Mothers at
High Risk for Food Unsafe
Mariana Espósito
1
*, Emília Sakurai
2
, Joel Alves Lamounier
3
, Romero
Alves Teixeira
4
, Élido Bonomo
5
, Camilo Adalton Mariano da Silva
5
,
and Mariângela Carneiro
6
1
School of Medicine, Federal University of Minas Gerais, Brazil
2
Institute of Exact Sciences, Federal University of Minas Gerais, Brazil
3
Department of Pediatrics, Federal University of São João Del Rei, Brazil
4
Faculty of Biological Sciences and Health, Federal University of the Jequitinhonha and
Mucuri Valleys, Brazil
5
School of Nutrition, Federal University of Ouro Preto, Brazil
6
Institute of Biological Sciences, Federal University of Minas Gerais, Brazil
Abstract
Promotion and protection of breastfeeding is an important strategy in prevention of Vitamin A (Retinol) deficiency in childhood. Breast milk retinol’s allows
us the chance to reach the maternal nutritional status and go over infant status. This study aimed to know the retinol and fat content in mature breast milk
from Novo Cruzeiro’s population, Brazil. It was analyzes 63 samples of breast milk that belonged to 81 children. The fat content was reached by crematocrit
procedure and Retinol content by HPLC. Others datas had gotten through semi-structured pre-coded questionnaires. Statistics analyses were performed non-
parametric for paired samples. The median of Retinol was 0,62 µg/100mL and 1,7µg/100mL from breast milk before and after the infant had breastfed. The
samples were considered statistically different (p<0,001) for Retinol contents and for fat contents (p<0,001). The results shows that Vitamin A’s content after the
suck one , in each class of alimentary security, are strongly bigger than the content before suck (The Alimentary Security p=0,005; Light Unreliability p < 0,001;
Moderate Unreliability p < 0,001; Deep Unreliability p< 0,001). The results suggest that the breast milk from the end of the suck provides greater retinol
ingestion; breast milk before feed allows to reach The Brazilian Scale of Unreliability Alimentary. Although it is important to guide mothers to not interrupt the
suck one and not to limit the manual expression only to initial breast milk.
ABBREVIATIONS
R: Retinol; VAD: Vitamin A Deficiency; BSUA: Brazilian Scale
of Unreability Alimentary
INTRODUCTION
Breast milk is the complete food for the infant. Provides
energy and nutrients in appropriate amounts for good nutrition
during the first months of life [1]. The promotion and protection
of breastfeeding is an important strategy for prevention of
various diseases, especially in children who live in communities
of low socio-economic conditions [2]. The lactation stages
produce milk of different composition, classifying breast milk:
colostrum (thick, yellowish fluid produced three to six days after
birth), transitional milk (seven to 15 days after birth) and mature
milk (produced in continuity with transitional milk) [3]. Its
composition is relatively constant, although the content of some
nutrient varies significantly throughout the lactation during the
day and even along a single feed [4]. This occurs, for example,
with Vitamin A [5,6]. The content of Vitamin A in breast milk
can also be influenced by the time of feeding, since the latter are
richer in fat, involved in nutrient uptake and transport of vitamin
A [7,8].
Vitamin A is a fat-soluble compound and its form of alcohol
is called Retinol. Several retinol precursors’ compounds are
present in our diet, including the carotenoid stand out. Vitamin
A also preformed is present in certain food sources, especially in
the liver (stock in mammals) and milk (source for infants). The
bioavailability of these different compounds is well known and
equivalent forms are established that relates the measurement.
Vitamin A deficiency (VAD) is a major public health problem
in developing countries. This deficiency is the leading cause of
blindness could be prevented in children as well as being a factor
that increases morbidity and mortality in the setting of infection
[9]. Taking into account the nutritional demands increased
during pregnancy and lactation, women in these phases, with
marginal diets are more susceptible to VAD, thus integrating an
epidemiological framework that can affect their children [10].
Assessment of vitamin A status of individuals and populations
requires specific methodology and resources. Applications for
laboratory research for measuring vitamin A and other fat-
soluble vitamins have increased significantly [11].
The assessment of vitamin A status is done by measuring
serum retinol concentration; however, this simple method is not
a good indicator of hepatic retinol stocks, which usually needs